how to extract data in text field in AS03

Dear Experts,

During legacy data upload, i had included some data in the long text field in general tab in AS91(during upload). Now i want to extract that data in long text field from AS03 but whenever i click F1 on that field, the message appear 'No Documentation Available'.

Kindly guide me on how to extract that data as i need to create a report from it.

Your quick response on this regard will be highly appreciated.